| MichaelCullen |
Or you can purchase a casting of Restoration. You only need the cheaper version.
Between games or anytime you are in a settlement of at least 5000 people you can purchase spellcasting. The cost is spell level X caster level X 10 + material component cost.
Resotoration is a 4th level cleric spell so 4 X 7 X 10 + 100 (cheaper material component version of the spell) =380 gold.
You can pay a cleric to get rid of all the drain from one score by paying them to cast Restoration for 380 gold. Not a big price at higher levels.
Conversely, as Nefreet says, you can wait till next session and see if there is a player playing a character who can cast restoration. In this case you will only need to pay for the material component (100g).